SLAP Observer --- TMB130SS, SV102V(LOMO Lens), SV80ED Deluxe "The only thing necessary for the triumph of evil is for good men to do nothing." -- Edmund Burke. "People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell "The measure of a man’s greatness is not determined by what he accomplishes for himself, but by what he accomplishes for others.” -- Some Bald Guy
//Anders 8" EdgeHD Skywatcher Equinox 120 Pro 80mm f/6 TS triplet APO
Orion xx14g Dob CPC 1100 w/Skywatcher 80ED piggybacked Coronado PST TMB 92L refractor AT Voyager mount Nexstar 6/8 mount Denk Big Easy binoviewers Oodles of eyepieces and other optical gadgets Past scopes Meade 8" reflector and 8" SCT
"Considered as a collector of rare and precious things, the amateur astronomer has a great advantage over amateurs in other fields ... the amateur astronomer has access at all times to the original objects of his study; the masterworks of the heavens belong to him as much as to the great observatories of the world. And there is no privilege like that of being allowed to stand in the presence of the original." --Robert Burnham Jr, Burnham's Celestial Handbook
François C8 f/10, lunt 102 mm f/7 ED. SkyWatcher 12" f/5. pentax XW 40, 30,10 delos 14, 8, 6, 4.5. Vixen lvw 22 Brandon 12, 8 TV 2x barlow Closer and closer to the ideal eyepiece collection, but never reaching perfection
C10NGT, Z8, 150 Rumak, XLT 150, C6, C5, SW5 Newt, 4.5 Ball, C102GT, C90, ST80, A70LF; 15x70, 25x100; Burgess BV; Paracorr II; T6 2.5, XO 2.58/5.1, Ethos-SX 3.7, Delos 4.5, TV Plossl 7.4-26, BCO 10, Hutech HC 12.5, Sterling 12.5-25, ES100 14, CZJ H 16/25, CZJ O 16, M5k UWA 24, T5 31, Ultrascopic 35, Titan-II 40; Bino Pairs M5k UWA 6.7, Baader Zoom 8-24, M5k SWA 24, TV Plossl 26, RKE 28.7; Zooms NZ 2-4, NZ 3-6, Leica ASPH 8.9-17.8, Baader 8-24; Baader Zoom Barlow, VIP Barlow
Some nice telescopes, and a couple of mounts. Vixen 90mm f9 Fluorite, 10" f/6 Discovery w/ Ostahowski Primary, Destiny curved spider, Protostar secondary, Celestron 9.25, Celestron 6" SE. --Vixen GP w/ Synscan Go-To, KB Systems Gibraltar legs. --Atlas EQ-G.
Quote:I'm looking at purchasing a high power EP for a CGEM 925 HD. Do you have any favorites you would recommend?
Quote:BRANDON - When I first reviewed this eyepiece I was hard on it because I was hoping to get a bit more warmth out of the image for Jupiter. What I'm about to share with you may sound surprising but this occured at Charlton Flats where we conduct planetary observations. My friend Jorge and I were observing Saturn with his 8" TMB and his then new Badder binoviewer. We tested various eyepieces that night. The 12.5mm UO's, 15mm Parks Gold Series, 16mm Nagler T5's and a set of 16mm Brandons. To my amazement and Jorge's, we were actually shocked to see that the Nagler T5 16's clearly beat out both the UO and Parks GS. We could easily see less light scatter in the 16mm T5 Nagler's, then when we popped in the Brandons it was all over. The image was completely etched in tack sharp contrast and clearly out performed these other sets of eyepieces. Like I said before, I was hard on the Brandon's, but they are highly regarded eyepieces. Pons loaned me two complete sets in brass for testing. Images are completely white and neutral and are probably the finest eyepieces for solar wedges. If you've never seen sun spots in a solar wedge, trust me, you don't know what you're missing. Glass and mylar filters are not even close in comparison to a solar white light wedge! The Brandons are highly recommended and are stunning on the Moon.
Quote:XO 5.1. That puts an f/10 scope at about 0.5mm exit pupil, the highest I usually go for planet observation. IMO, the XO's are the best eyepieces for viewing planets, unless maybe you want to pay two or three times higher for a ZAO.
10" F/4.7 Modified Skywatcher Reflector, 38mm Orion Q70, 17mm Modified Ultima LX, 10mm TeleVue Delos, 7mm Pentax XL.
Quote:I'm looking at purchasing a high power EP for a CGEM 925 HD. Do you have any favorites you would recommend? TIARick
Quote:Quote:XO 5.1. That puts an f/10 scope at about 0.5mm exit pupil, the highest I usually go for planet observation. IMO, the XO's are the best eyepieces for viewing planets, unless maybe you want to pay two or three times higher for a ZAO.MikeCGEM 925 HD = 92.5" FL = 2349.5mm FLThat would give him 460x....far too much power.
Quote:XO 5.1. That puts an f/10 scope at about 0.5mm exit pupil, the highest I usually go for planet observation. IMO, the XO's are the best eyepieces for viewing planets, unless maybe you want to pay two or three times higher for a ZAO.Mike
Andy Miller 12 Skywatcher Collapsible Dobsonian (coming soon) Celestron C102 HD " Carl" Scope brand 60mmx 700mm " widger scope" Celestron Comet catcher(orange tube)"Scott" 60mm Telescope Club
Cactus Patch Observatory / 14" LX200
"The four points of the compass be logic, knowledge, wisdom, and the unknown. Some do bow in that final direction. Others advance upon it. To bow before the one is to lose sight of the three."
Quote:In my own scopes, I find a 1mm exit pupil to give me about the most detail I can extract from a planet. Past this, I can make it bigger, but usually no new detail is presented. And past about .7mm, and I can see that the most challanging detail is fading.
Quote:In theory, there is no limit to magnification.
Quote: For example, look at some of the best images taken with large reflectors. These scopes are often working with the equivilent of a 2mm to 4mm eyepeice.
But if you attempted to use this much power visually, it would produce a horrible image.
Quote:The telscope presents all of the detail it is capable of rendering with the magnification reaches about 1.1x per millimeter of aperture. This is when the smallest detail that the scope is capable of resolving is provided with sufficient angular magnification to be resolved at the focal plane. Past this, you can go bigger and bigger, but no new detail is ever presented.
Quote:The main reason I resist the message that 50X per inch is the right planetary detail is because over the years, I have heard so many people question if their telescopes were defective. They would read these reports about 50x per inch, but when they used their scopes, they were not seeing any new detail.
Quote:They thought their scopes must be defective because the message seemd to be that the more power you use, the more detail you would see.
Quote:Factor in seeing, and 300x is the practical limit for most of us on most of the time anyway, but someone should not be surprised at all if they find that going to 50x per inch doesn't result in additional detail.
Quote:Pete, I'm thinking I could get a 10 mm. and use a Barlow for those very rare times that atmospheric conditions permit. Does that sound reasonable?Rick
CG-11 5"mak,CR6&4,c60(vixen)ST120,MK67 1939 B&L 7x50,1943 AO M28 Past Friends 32 rfrs including 6" petzel,antares 6" 1529, Antares 4"f15,Jaegers 5" f5,76mm Mayflower,etc 19 Newt 4"-16" including Meade 1266 RG,DS16,SN10,RV6,SPC6,6"SS conqueror,5.5"CC,10" homemade,4" dynascope.etc 16 sct/mct 90mm-10" including Meade 2010,Super C8,180mm Orion mak,meade 2045,c90 etc 250 binos My Gallery